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Title: Process Modelling of IN718 for Free Forging

Abstract

Ni based alloy IN718 is important material used for engine shafts, turbine disks of gas turbine engines. The grain refining of the IN718 becomes important because of the improvement of reliability. We have developed newly advanced {delta} process to obtain the grain of less than 22.5 {mu} m (ASTM No.8.0) even after solution treatment. Furthermore we have developed the microstructural prediction system of IN718 for the process modelling. In this paper, the advanced {delta} process and it's process modelling in the turbine disk forging were reported. As the result, we could obtain successful fine microstructure less than 22.5 {mu} m after solution treatment in turbine disk.

Authors:
; ; ;  [1];  [2]
  1. Research and Development Lab., Daido Steel Co., Ltd., 2-30 Daido-cho, Minami-ku, Nagoya (Japan)
  2. Shibukawa Plant, Daido Steel Co., Ltd., 500 Ishihara, Shibukawa (Japan)
Publication Date:
OSTI Identifier:
21061786
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 908; Journal Issue: 1; Conference: NUMIFORM 2007: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2740939; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; COMPUTERIZED SIMULATION; FORGING; GRAIN SIZE; INCONEL 718; MATHEMATICAL SOLUTIONS; MICROSTRUCTURE; NUMERICAL ANALYSIS; REFINING; RELIABILITY

Citation Formats

Yoshida, Hiroaki, Hatta, Takeshi, Hironaka, Tomohisa, Isogawa, Sachihiro, and Sekiguchi, Hideaki. Process Modelling of IN718 for Free Forging. United States: N. p., 2007. Web. doi:10.1063/1.2740939.
Yoshida, Hiroaki, Hatta, Takeshi, Hironaka, Tomohisa, Isogawa, Sachihiro, & Sekiguchi, Hideaki. Process Modelling of IN718 for Free Forging. United States. doi:10.1063/1.2740939.
Yoshida, Hiroaki, Hatta, Takeshi, Hironaka, Tomohisa, Isogawa, Sachihiro, and Sekiguchi, Hideaki. Thu . "Process Modelling of IN718 for Free Forging". United States. doi:10.1063/1.2740939.
@article{osti_21061786,
title = {Process Modelling of IN718 for Free Forging},
author = {Yoshida, Hiroaki and Hatta, Takeshi and Hironaka, Tomohisa and Isogawa, Sachihiro and Sekiguchi, Hideaki},
abstractNote = {Ni based alloy IN718 is important material used for engine shafts, turbine disks of gas turbine engines. The grain refining of the IN718 becomes important because of the improvement of reliability. We have developed newly advanced {delta} process to obtain the grain of less than 22.5 {mu} m (ASTM No.8.0) even after solution treatment. Furthermore we have developed the microstructural prediction system of IN718 for the process modelling. In this paper, the advanced {delta} process and it's process modelling in the turbine disk forging were reported. As the result, we could obtain successful fine microstructure less than 22.5 {mu} m after solution treatment in turbine disk.},
doi = {10.1063/1.2740939},
journal = {AIP Conference Proceedings},
number = 1,
volume = 908,
place = {United States},
year = {Thu May 17 00:00:00 EDT 2007},
month = {Thu May 17 00:00:00 EDT 2007}
}
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